Slumberland cast: who's who in the Netflix fantasy movie

(L-R) Marlow Barkley as NEMO and Jason Momoa as FLIP
Who's in the cast of Slumberland? (Image credit: Netflix)

Slumberland is a Netflix fantasy movie based on the comic strip Little Nemo in Slumberland by Winsor McCay, which tells the story of Nemo (Marlow Barkley) who discovers a secret map to the magical dreamworld of Slumberland. 

Along with her new companion, the lovable outlaw Flip (Jason Momoa), the pair go on an epic adventure as they traverse dreams in a bid to be reunited with her late father Peter (Kyle Chandler).

With a fantastic cast featuring in Slumberland, let's take a look at the stars and their magical roles...

Who's who in the Slumberland cast?

Jason Momoa as Flip

(L-R) Marlow Barkley as NEMO and Jason Momoa as FLIP

(Image credit: Courtesy of Netflix)

Jason Momoa plays eccentric outlaw Flip — although he may look scary with his half man and half monster appearance, he is a lovable creature who becomes friends with Nemo and guides her through dreams to help her see her late father again.

Jason has become one of the biggest stars in the industry and is best known for his role as Drogo, the Dothraki warlord in Game of Thrones and DC superhero Aquaman. He has also appeared in Dune as Duncan Idaho and is set to star as a villain in the upcoming Fast & Furious 10 movie, Fast X.

Marlow Barkley as Nemo

Marlow Barkley as Nemo with Pig

(Image credit: Netflix)

Marlow Barkley stars as Nemo, an 11 year old girl who is grieving the loss of her father. Even though her once perfect world has now imploded, this doesn't stop her from hoping to reunite with her dad through her dreams along with her new pal Flip.

Slumberland is Marlow's first movie, with the young actress also recently starring in Apple TV's Spirited alongside Will Ferrell and Ryan Reynolds. Her other acting credits include Single Parents and she has voiced characters in South Park, The Loud House and Amphibia.

Kyle Chandler as Peter

(L-R) Kyle Chandler as PETER and Marlow Barkley as NEMO

(Image credit: Netflix)

Kyle Chandler portrays Peter, Nemo's father. The father and daughter live in a lighthouse and are extremely close. He often tells Nemo bedtime stories about his fantastical adventures in the magical kingdom of Slumberland with Flip, until he disappears at sea.

Kyle is an Emmy-award winning actor, which he won for his role as Eric Taylor in Friday Night Lights and he has since gone on to star in major award-winning movies such as The Wolf of Wall Street, Manchester by the Sea and King Kong. He has also appeared in Grey's Anatomy, Bloodline, Godzilla, and The Spectacular Now to name a few.

Chris O'Dowd as Philip

(L-R) India de Beaufort as MS ARYA, Chris O’Dowd as PHILIP and Marlow Barkley as NEMO

(Image credit: Netflix)

Chris O'Dowd is Philip, Nemo's uncle and now guardian after the death of his brother. He is nothing like his brother, Peter and he tries his best to forge a relationship with Nemo, but his deeply awkward attitude often hinders their bond.

The Irish actor won an Emmy for his role of Tom in the comedy series State of the Union and shot to stardom after appearing as Roy Trenneman in the British comedy The IT Crowd. He has also appeared in Bridesmaids, This Is 40, Molly's Game, Moone Boy and many more.

Weruche Opia as Agent Green

(L-R) Weruche Opia as AGENT GREEN and Marlow Barkley as NEMO in an office

(Image credit: Netflix)

Weruche Opia plays Agent Green, a 160 year old dream agent for the Bureau of Subconscious Activities. She's speedy and will go to desperate lengths to get her hands on the secret map that's guiding Nemo and Flip through Slumberland.

Weruche's previous acting credits include I May Destroy You, Bad Education, Sliced and When Love Happens.

India de Beaufort as Ms. Arya

(L-R) India de Beaufort as MS ARYA, Chris O’Dowd as PHILIP and Marlow Barkley as NEMO

(Image credit: Netflix)

India de Beaufort is Ms. Arya, a teacher who goes to great lengths to make sure Nemo settles into her new school. However, her cheerful and positive personality can sometimes be overbearing for Nemo, who is mourning the loss of her dad.

India has previously starred in Run Fatboy Run, One Tree Hill and Kimi.

Humberly González as Graciela

Humberly González stars as Graciela, a magical dancer who knows how to have fun. Her hypnotizing dance moves make Flip swoon — much to Nemo's dismay.

Humberly is known for her roles in Ginny & Georgia, Workin' Moms, In the Dark and Utopia Falls.

Who else stars in Slumberland?

Also starring in Slumberland are...

  • Tonya Cornelisse as Agent Red
  • Chris D'Silva as Jamal
  • Cameron Nicoll as Young Philip
  • Antonio Pastore as Young Peter

Slumberland is available to watch on Netflix now.

Grace Morris
Staff Writer

Grace is a digital writer with WhatToWatch.com, where she writes series guides, recaps and features for must-watch shows and delivers all the latest soap news and reactions. She graduated from Anglia Ruskin University in 2020 with a degree in Writing and Film Studies, which only made her love for creative writing, film and TV grow stronger.


You'll usually find her watching the drama unfold in the latest reality series or much-loved UK soaps (usually with chocolate by her side!). She's an expert in EastEnders, Emmerdale, Coronation Street and everything reality-related from Selling Sunset and Married At First Sight UK to 90 Day Fiancé UK. Plus Netflix megahit Virgin River!


Grace also likes to explore new places with her friends and family and, of course, watch and read about the latest films and TV series.